Wall Clock Quartz
Wall Clock Quartz what does the word "Quartz" indicate on watches?? we see the word quartz on most of the wrist watches and even some fo the wall clocks also...what does that mean?? It is a quartz...
Wall Clock Quartz
what does the word "Quartz" indicate on watches??
we see the word quartz on most of the wrist watches and even some fo the wall clocks also...what does that mean??
It is a quartz crystal that oscillates with precise timing when a current is applied to it without being affected by temperature, humidity, altitude. etc.
http://en.wikipedia.org/wiki/Quartz_crystal
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Wall Clocks Designed for Outdoor Use Add Beauty and Functionality
Expanding your living space and increasing the value of your home can be as easy as adding charming decor to your outdoor living space. Patios and decks, screened porches and sun rooms, and outdoor kitchens and dining rooms are perfect locations to entertain friends or to enjoy some quality relaxation time when the weather is pleasant. Your outdoor spaces should be an extension of your indoor living areas in that they should feel comfortable and reflect your personal style. Furniture, rugs, lighting, and decor are essential factors to consider that allow you to put together the ideal outdoor living space.
An outdoor clock is one of the easiest and least expensive ways to bring the feel of the indoors outside. Today's outdoor clocks are not only weather resistant and moderately priced, they are also beautiful. They are available in many styles and models, and the available materials range from weather resistant metals and natural woods, to glass and durable plastics. In addition, you are sure to find a style of outdoor clock that matches your own preferences, whether traditional, antique, contemporary, whimsical, rustic, or retro.
Outdoor clocks bring more than beauty to your outdoor living spaces; they can provide a wide array of technical functions. Many outdoor clocks come with thermometers to measure temperature, barometers to measure air pressure, and hygrometers to measure humidity. One of the greatest advantages of some outdoor clocks today is their ability to automatically synchronize to U.S. official time. The Time and Frequency Division of the National Institute of Standards and Technology (NIST) in Boulder, Colorado, houses the NIST-F1 cesium fountain atomic clock, which is one of the most accurate clocks in the world and which sets the standard for the nation's primary time and frequency. The NIST broadcasts a low frequency signal from its own radio station near Fort Collins, Colorado (WWVB), and this signal is received by outdoor clocks, as well as other electronic devices, that contain a miniature radio receiver. Once the radio controlled clock receives the signal from the WWVB station, it will synchronize, resulting in remarkably accurate time.
Indoor/outdoor clocks vary in the number of times per day that they synchronize to the WWVB time signal; some synchronize every 4 or 6 hours, while some only synchronize once per day. Clocks that synchronize only once per day usually do so at night when the signal from WWVB is at its strongest. Outdoor clocks that synchronize once each day are as precise and accurate, though, as those that synchronize several times. The NIST's Time and Frequency Division explains that "in between synchronizations, the clocks keep time using their quartz crystal oscillators. A typical quartz crystal found in a radio controlled clock can probably keep time to within 1 second for a few days or longer." As a result, a clock that synchronizes more than once per day has no real advantage over one that synchronizes only one time.
Beauty, style, accuracy, high-tech functionality, and affordability -- today's outdoor clocks offer so much in a single package. As a whole, clocks have been a considerable factor in our lives for centuries; they remind us of occasions we don't want to miss and allow us to mark the moments that define our lives. Adding the good looks and functionality of a clock to your deck, screened porch, or outdoor kitchen is a natural way to bring an essential element of life and the comfort of the indoors to your backyard, deck, and patio.
Source:
"WWVB Radio Controlled Clocks." Time and Frequency Division. National Institute of Standards and Technology.
About the Author
Trey Collier is owner of BackyardCity.com, North America's finest Outdoor Casual Living Store, designed and created to help fashion outdoor living spaces. Since 2001, BackyardCity.com has offered internet customers quality outdoor living products, including Decorative Outdoor Clocks, at very reasonable prices.